arp across subnets which devices can be detected?

Posted by Gobliins on Server Fault See other posts from Server Fault or by Gobliins
Published on 2012-10-12T07:47:58Z Indexed on 2012/10/12 9:40 UTC
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Filed under:

networking

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ethernet

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arp

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broadcast

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discovery

i have some devices connected in the same physical network (LAN) but in different subnets. I want to detect them all with the ARP from my computer. My Computer is also in the same physical network but on a different subnet.
! The devices have no arp protocol installed (yet).

Is it possible to detect the devices (with or withour ARP installed on every device)?
If the devices have a MAC-address but no IP-address, can ARP still detect the machines?

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